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Phenotypes Associated with This Genotype
Genotype
MGI:3655295
Allelic
Composition		 Xrcc2tm1Pmc/Xrcc2tm1Pmc
Atmtm1Pmc/Atmtm1Pmc
Genetic
Background		 involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Atmtm1Pmc mutation (0 available); any Atm mutation (168 available)
Xrcc2tm1Pmc mutation (1 available); any Xrcc2 mutation (17 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
embryonic lethality during organogenesis, complete penetrance ( J:111068 )
• embryos are recovered at the same frequency as Xrcc2 single mutants indicating Atm deficiency does not provide a survival advantage

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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Send questions and comments to User Support. 		last database update
01/28/2026
MGI 6.24 		The Jackson Laboratory